The Fisher Body Style Number does not necessarily correlate with the
GM VIN as to whether the car was built with an L6 or V8 engine. In 1970
the only confirmed plants to use the same style number on the Fisher Body Number
Plate that matched GM's VIN the Baltimore, Kansas City, Oshawa plants.
Whether Arlington, Atlanta, Flint, and Van Nuys plants
still used a style number of, for example, 13637 for a Malibu 2-door
sport coupe whether that particular car came with an L6 or V8 is unknown
at this time.

Chevrolet revamped their series naming somewhat in the U.S. The
300 Deluxe 133/134xx series now became the Chevelle
Standard although the 300
Deluxe remained in Canada.

If you have an image of a 1970 trim tag from Arlington, Atlanta,
Flint, or Van Nuys of any style with an odd 3rd digit, please
contact
me.